JP2005295838A - Float island unit and vegetation float island - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vegetation float island comprising an artificial float island produced by using waste tires in view of recycle of products, provided with aquatic plants planted on a vegetation base part, and preventing a float island body from being broken via washing ashore of small ships or collision of driftwood to the artificial float island. <P>SOLUTION: This vegetation float island is structured as follows: fixing crash units 3 where an inner-part foaming buoyant body 16 is formed at the inner part of each of the waste tire 10, a vegetation-base housing basket 11 projecting downward from the bottom surface opening of the waste tire 10 is provided, and a vegetation base material 15 is charged in the waste tire 10 and the vegetation-base housing basket 11, at prescribed intervals on the peripheral position of a float island obtained by forming a foamed buoyant body 12 having joining parts at prescribed positions of an outer edge around the waste tire 10, putting the vegetation-base housing basket 11 projecting downward from the bottom surface opening of the waste tire 10, and joining a float island body unit 2 obtained by charging the vegetation base material 15 into the waste tire 10 and the vegetation-base housing basket 11. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a floating island unit and a vegetation floating island, and is connected to its main structure using waste tires from the viewpoint of product recycling, and the floating island unit prevents the risk of damage due to collision of driftwood or the like even during use, and the floating island unit It is related to the vegetation floating island in consideration of the surrounding scenery by planting.

  More than 100 million waste tires are generated annually, and a part with less damage is reused as a tire after undergoing a predetermined regeneration operation as a corrected tire. About half of the heat is used as a heat source and a part of the cement raw material in the cement manufacturing process. However, diversion to other uses is required from the viewpoint of reducing carbon dioxide generation. For this reason, various methods of recycling waste tires by mechanical treatment have been implemented. For example, waste tires are cut into tire chips, or crushed to use recycled rubber or rubber powder for various industrial products and materials. However, a processing step is required and the amount of material used in the market is not so large. In addition, there are uses as a slope retaining material, playground equipment, and fenders to use waste tires in their original form (product recycling), but the amount used is also small.

  Therefore, the applicant forms a foam buoyant body having a connecting portion at a predetermined position on the outer edge around the waste tire, and closes one opening of the tire with a mesh material to form the bottom portion in the waste tire. A floating island-shaped unit filled with a vegetation base material is manufactured, a large number of the floating island units are connected, and a vegetation floating island is proposed in which the vegetation base material is vegetated (see Patent Document 1).

  As the water extraction plant that grows on this vegetation floating island, native species that are rooted in the waters of the lake shore such as the lake where the vegetation floating island is installed are often selected, but it is easy to live in the water below the vegetation floating island, Plants that tend to grow leaf stems on the water, such as annual grasses such as reed, macomo and cattail, are often selected. These water extraction plants are known to live in the water, absorb phosphorus, nitrogen, etc. in the water and exert water purification functions. This kind of vegetation floating island plays a role in improving the surrounding landscape and improving water quality. Is expected to fulfill.

JP2003-88259A.

  By the way, when installing the above-mentioned vegetation floating island in a dam lake etc., the state where effluents, such as driftwood, collide with a vegetation floating island is assumed. In this case, there is a concern that the polyurethane resin as the floating island unit buoyant body constituting the vegetation floating island is damaged. In addition, covering the polyurethane resin part of the floating island unit with a protective mat made of non-woven fabric containing palm fibers can reduce the damage to the floating island unit. The effect is hardly expected. In the present specification, the effect of reducing damage when the effluent flowing on the surface of the water collides with the floating island unit is referred to as “anti-impact effect”.

  On the other hand, as described above, as an application example of the use of the original form of the waste tire, there is a fender that uses the elasticity of the waste tire and arranges the waste tire side by side on a pier or the like. If it is attached directly to the side, the balance of the buoyancy of the floating island unit will be lost, and the landscape will not be preferable.

  In addition, in order to further promote water quality purification by the above-mentioned extraction plants, an appropriate water flow is generated around the floating island to purify the water quality, and a device with functions such as water supply to the plant is installed on the vegetation floating island In that case, a small ship for landing on the vegetation floating island may be berthed to the vegetation floating island for maintenance of the equipment, so the ship berthing part of the structure that does not damage the floating island unit is installed. It is also necessary to prepare.

  Therefore, the object of the present invention is to solve the above-mentioned problems of the prior art, and when it is installed in a water area such as a dam lake or when considering the berthing of a small vessel, its impact prevention effect is obtained, and vegetation is obtained. It is to provide a floating island unit and a vegetation floating island that can ensure the stability of the floating island.

  In order to achieve the above object, the present invention forms a foam buoyant body having a connecting portion at a predetermined position on an outer edge around a waste tire, and further includes a vegetation base accommodating portion protruding downward from a lower surface opening of the waste tire. A main body unit formed by filling the waste tire and the vegetation base housing portion with a vegetation base material; and a connecting portion with the main body unit inside the waste tire; and a foam buoyant body is formed in the tire internal space. A vegetation base accommodating portion projecting downward from the lower surface opening of the waste tire, and comprising an anti-impact unit formed by filling the waste tire and the vegetation base accommodating portion with a vegetation base material, the anti-impact unit, It is characterized by being fixed at a predetermined interval at the outer peripheral position of the floating island formed by connecting the main unit.

  A solar cell driven water purification facility and / or plant water supply facility is provided in the main unit, and a ship berthing part for accessing the outer main unit is constructed in a part of the main unit by the anti-impact unit. preferable.

  The above-mentioned floating island unit is connected to a predetermined plane shape, and a vegetation floating material is planted on a vegetation base material and placed in an installation water area to form a vegetation floating island.

  According to the present invention, when it is installed in a water area such as a dam lake, or on a vegetation floating island in consideration of the berthing of a ship, the impact prevention effect is obtained, and the stability of the vegetation floating island can be secured.

  Hereinafter, the following embodiments will be described with reference to the accompanying drawings as the best mode for carrying out the floating island unit and the vegetation floating island of the present invention.

  FIG. 1 is a perspective view schematically showing a part of a floating island unit configured by connecting a plurality of main body units 2 and a collision prevention unit 3. The figure shows a part of a floating island unit in which a collision prevention unit 3 is connected to an outer portion of a plurality of main body units 2 connected by a connecting metal fitting (not shown).

  FIG. 2A is a plan view showing a state in which the impact prevention unit 3 and the floating island unit 2 are connected in series, and FIG. 2B is a cross-sectional view taken along the IIb-IIb cross-sectional line. Hereinafter, the configuration of the floating island unit and the collision prevention unit will be described. As shown in FIG. 2, the main unit 2 has a plane dimension slightly larger than the tire diameter so that the side length of one side of the waste tire 10 is slightly spaced from the outer circumference of the waste tire 10. And a foam buoyant body 12 foamed in a substantially regular hexagonal shape, and a substantially hemispherical shape having a predetermined diameter and a slightly lower diameter so as to close the lower surface opening of the horizontally disposed waste tire 10. A base material storage basket 11 as a vegetation base storage part and a connecting jig 14 for connecting the units 2 are formed, and the vegetation base material 15 is filled in the waste tire 10 and the base material basket.

  In the present specification, the waste tire 10 is a tire that is used as a vehicle tire, for example, a tire that is not suitable for riding due to wear of a tread pattern and discarded, and has been recycled with the intention of using the original form (product recycling). Say things. The waste tire 10 used in its original form has various sizes. If the tire has a dimension that can be accommodated while ensuring the minimum thickness of the foamed buoyant body in a substantially regular hexagonal mold set to a predetermined dimension. Even tires with slightly different sizes can be used. In general, it is preferable to use a general passenger car tire having a tire diameter of about 70 cm and a tire width of about 20 cm.

  As the foam buoyancy body 12, a foamed polyurethane resin that is blown and filled in a gap between the waste tire and the mold frame in a state where the waste tire 10 is accommodated in a mold frame (not shown) is used. When the foamed buoyant body 12 is foamed into the mold, the resin adheres closely to the tire outer peripheral surface of the waste tire 10, and therefore, a bottom plate is not required in terms of structure. In the embodiment of FIG. 2, the thickness of the foam buoyancy body 12 is equal to the tread width of the waste tire 10, so that the sidewall portion of the tire is exposed from the thickness of the foam buoyancy body. The molded thickness of the body 12 is preferably set as appropriate so that the draft as the vegetation floating island 1, that is, the inundation conditions suitable for the growth environment of the aquatic plant to be planted can be realized.

  A base material accommodation basket (hereinafter simply referred to as a basket) 11 is, as shown in FIGS. 1 and 2, a bowl-shaped body having a predetermined curved surface having a predetermined depth, for example, a hemispherical shape. The frame 11 (11a, 11b) and the net 13 are formed from a polyethylene resin molded product integrally formed. Even when the vegetation base material 15 as the contents is filled, the ring frame 11a arranged radially in the meridian direction of the hemisphere and a predetermined direction in the circumferential direction are opened so that the substantially cylindrical shape is sufficiently retained. The ring frame 11b forms a skeleton, and a net is formed between the lattices. Since the diameter of the upper opening of the basket 11 is large as a whole, the basket 11 is fixed at a predetermined position by dropping into the tire opening. However, the basket 11 is bound to a part of the tire by a resin binding wire or the like at several places. It is preferable. Thereby, even if the vegetation base material 15 is sufficiently accommodated in the basket, the basket does not fall off. The opening of the net is such that the frame shape and net strength do not deform or break even if the vegetation base material 15 is sufficiently accommodated in the basket 11, and the roots of the aquatic plant can pass sufficiently. It is preferable to make it sufficiently rough, and it is preferable to make the openings about 1.0 to 3.0 mm.

  As a modification, the above-described skeleton frame may be a molded product, and the basket 11 in which a polyethylene resin net 13 is attached to the entire inner surface of the skeleton frame may be used.

  As shown in FIGS. 2A and 2B, the impact prevention unit 3 is filled with foamed polyurethane resin as an internal foam buoyant body 16 in the waste tire 10 and a basket 11 is attached to the lower surface opening, and vegetation is formed inside. It consists of the structure filled with the base material 15. As shown in FIG. 1, the impact prevention unit 3 is fixed at two points via connection bolts 17 (see FIG. 2) so as to contact two sides of the adjacent main unit 2. For this reason, it is preferable to form in the part of the internal foam buoyant body 16 of the impact prevention unit 3 a box opening 18 capable of nut-fixing the connecting bolt 17 extending from the main unit 2 side.

  Further, in order to further improve the stability of the main unit 2 to which the impact prevention unit 3 is attached, the waste tire 10 has a stacked structure, and the waste tire is stacked in two stages in order to improve the stability of the floating island unit itself. It is also preferable to construct a foamed buoyant body made of urethane foam having such a structure as to cover two stages.

  As shown in FIG. 1, a plurality of main body units 2 configured in this way are constructed as floating islands having a predetermined planar shape in which the impact prevention units 3 are connected to predetermined positions on the outer periphery using connecting metal fittings. The vegetation base material 15 is filled in the main body unit 2 and the impact prevention unit 3 of the floating island to form a vegetation base part. As the vegetation base material 15, an artificial lightweight aggregate, a fired granular material, or the like is used. Furthermore, it is preferable to mix them with a predetermined proportion of chip-like organic base materials such as palm fiber and water. Moreover, the thinned material and the recycled material which carbonized driftwood can also be utilized as a granular material. The extraction plant 21 is planted in the vegetation base formed in this way. As the extraction plant 21, it is preferable to select a native species rooted in a water area of a lake shore such as a lake where the vegetation floating island 1 is installed. In the present embodiment, since the basket 11 of each main unit 2 has a hemispherical shape, the vegetation base part of the vegetation floating island 1 is sufficiently rooted easily.

  FIG. 3 is a partial cross-sectional view showing the vegetation floating island 1 after a predetermined period of time has been set in a predetermined water area on the vegetation floating island 1 provided with the impact prevention unit 3. As shown in FIG. 3, the vegetation floating island 1 is placed in an installation water area by an anchor cable 5. In the vegetation floating island 1 where the plant 21 has grown to some extent, the leaf stem 21a is sufficiently grown on the water, and the root 21b grown in the basket 11 can further pass through the net 13 and extend into the water.

  Moreover, the present Example shows an installation example of a device for supplying water to a plant and a device for water purification by installing a solar cell panel 30 on a vegetation floating island. In this embodiment, the solar cell panel 31 is installed on the foam buoyancy body 12 so that the panel surface receives sunlight efficiently. Further, a submersible pump unit 31 that can be driven by the electromotive force of the solar cell panel 30 is installed under the foamed buoyancy body in the water of the main unit 2. An intake pipe 32 and a drain pipe 33 are connected to the submersible pump unit 31, the intake port 32 a of the intake pipe 32 is located below the normal water level of the floating island, and the outlet 33 a of the drain pipe 33 is the vegetation of the floating island unit 2. It is located near the roots of plants that grow on the base. By providing this water supply system with the submersible pump unit 32, an appropriate circulating water flow is generated below and around the floating islands, preventing the occurrence of blue sea cucumbers that cause water pollution, and the growth of plants on the vegetation floating island 1 Can be promoted.

  It has been confirmed that in the growth of such a water extraction plant, it contributes to water purification by actions such as a decrease in nutrient salts in water and an increase in dissolved oxygen. In addition, this vegetation floating island can be floated in a water area such as a dam lake and used as a floating ground facility for agricultural production. For example, it is preferable to select a high-value-added variety such as wasabi or mizuna. Since this floating ground is rocked by wind waves, the roots of planted plants can always come into contact with fresh water with high oxygen concentration near the water surface. In this way, the dam lake can be used as a production area for agricultural crops, and it can be expected to improve the water quality by absorbing the eutrophic components that have flowed in and to secure a breeding place for small fish. In this case, when installing a floating ground facility for agricultural production, a small ship or the like is used for accessing the facility, but the ship is also in a stable state by berthing on the side where the anti-impact unit 3 is provided. It can be moored at the port and workability and safety at the time of berthing can be improved.

The fragmentary perspective view which showed one Example of the state which connected the floating island unit by this invention. The partial plane of the floating island unit shown in FIG. 1, sectional drawing. The fragmentary sectional view which showed the vegetation floating island in the state in which the plant grew.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vegetation floating island 2 Main body unit 3 Impact prevention unit 10 Waste tire 11 Basket 12 Foam buoyant body 13 Net 15 Vegetation base material 21 Plant 30 Solar cell panel 31 Submersible pump unit

Claims (3)

A foam buoyancy body having a connecting portion at a predetermined position on the outer edge is formed around the waste tire, and a vegetation base accommodating portion protruding downward from a lower surface opening of the waste tire is provided, and the waste tire and the vegetation base accommodating portion are provided. A body unit filled with a vegetation base material,
The waste tire has a connecting portion with the main body unit, a foam buoyant body is formed in the tire interior space, and a vegetation base accommodating portion protruding downward from the lower surface opening of the waste tire is provided, and the waste tire and An evacuation base unit filled with a vegetation base material in the vegetation base accommodating portion, and the anti-impact unit is fixed at a predetermined interval to an outer peripheral position of a floating island formed by connecting the main body units. Floating island unit.   2. The floating island unit according to claim 1, wherein a water purification facility and / or a plant water supply facility driven by a solar cell is provided in the main unit, and a ship berthing portion is constructed on a side surface of the main unit with the anti-impact unit. .   The vegetation floating island characterized by connecting the floating island unit of Claim 1 to predetermined plane shape, planting a water extraction plant in a vegetation base material, and setting it in an installation water area.

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